Detections
Analytics

Langflow 1.x.x < 1.10.1 Code Injection

critical Nessus Plugin ID 333371

Synopsis

An application installed on the remote host is affected by a code injection vulnerability.

Description

The version of Langflow installed on the remote host is 1.x.x prior to 1.10.1. It is, therefore, affected by a code injection vulnerability:

 - IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/auto_login (mints SUPERUSER tokens to any network caller) with /api/v1/validate/code (executes user code via exec()) to achieve full RCE on default Langflow deployments. (CVE-2026-9198)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Langflow version 1.10.1 or later.

See Also

https://www.ibm.com/support/pages/node/7278927

Plugin Details

Severity: Critical

ID: 333371

File Name: langflow_1_10_1.nasl

Version: 1.3

Type: Combined

Agent: windows, macosx, unix

Published: 8/7/2026

Updated: 8/24/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.36

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-9198

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:langflow:langflow

Required KB Items: installed_sw/Langflow

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/23/2026

Vulnerability Publication Date: 7/2/2026

CISA Known Exploited Vulnerability Due Dates: 8/7/2026

Exploitable With

Metasploit (Langflow AI auto_login RCE)

Reference Information

CVE: CVE-2026-9198

CWE: 94